SIV-infected natural hosts do not progress to clinical AIDS yet display high viral replication and an acute immunologic response similar to pathogenic SIV/HIV infections. During chronic SIV infection, natural hosts suppress their immune activation, whereas pathogenic hosts display a highly activated immune state. Here, we review natural host SIV infections with an emphasis on specific immune cells and their contribution to the transition from the acute-to-chronic phases of infection.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3022004PMC
http://dx.doi.org/10.1016/j.micinf.2010.09.011DOI Listing

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